MaltaWildPlants.com by Stephen Mifsud
 
     
   31 Jan 2023      ()
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Allium cepa   (Garden Onion)


Allium cepa  (AMARYLLIDACEAE.) 
Images for this profile are taken from the Maltese Islands after year 2000.

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Profile Date Jan-2008 (taxon update: none)
Citation for this page Mifsud, S. (2022). Allium cepa - datasheet created on Jan-2008. Retrieved from MaltaWildPlants.com on 31-Jan-2023

Nomenclature and Basic Information

Species name :

Allium cepaL.
Published in Sp. Pl. 301 (1753)

Synonyms :
(basionym or principal syn.)

Cepa vulgaris Garsault
Full list of synonyms : [Euro+Med] [PlantList] [IPNI] [POWO] [Catalogue of Life] [Worldplants.de]

Plant Family :

Amaryllidaceae Jaume St.-Hil (The Daffodil or Amaryllis Family)
28 species from the Amaryllidaceae family are recorded from the Maltese Islands.

English name(s) :

Garden Onion, Bulb Onion

Maltese name(s) :

Basla

Status for Malta :

Cultivated species. Introduced plants cultivated for agricultural or horticultural purposes but sometimes can be occassionaly found as an escapee close to the site of their original cultivation.

Frequency :

Data not available - casual or short-lived in the wild from accidental garden or agriculture escape

Growth form :

Raunkiaer lifeform [info]: GEOPHYTE ( bearing underground bulbs, rhizomes, stolons, etc. )
Germination [info]: Monocotyledon

Legal Protection :

Not legally protected till the last update of this website (2/Mar/2022)

Red List (1989) :

Not listed in the Red Data Book of the Maltese Islands

Flowering Time :

April – June

Colour of Flowers:

White

Toxicity:

Not particularly toxic

Name Derivation :

Allium: The classical Latin name for garlic. (Latin origin )
cepa:

Planting in rural areas :

Can be planted in rural areas according to ERA Guidelines


Description, Habitat and Distribution
Habitat in Europe: Cultivated on a field scale throughout most of Europe for its edible bulbs (onions). Ocassionally, found growing from dumped onions in disturbed areas or outside field borders.
Preferred habitat in Malta: Agricultural areas, sometimes as an escape from dumped onions
Botanical Description: Bulbs varying in size and shape from cultivar to cultivar, often depressed-globose and up to 10 cm in diameter; outer tunics membranous. Stem up to 100 cm and up to 30 mm in diameter, tapering from inflated lower part. Leaves up to 10, up to 40 cm and up to 20 mm in diameter, usually almost semicircular in section and slightly flattened on upper side, basal in first year, in second year their bases sheathing the lower 1/6 of the stem. Spathe often 3-valved, persistent, shorter than the umbel. Umbel 4-9 cm in diameter, subglobose or hemispherical, dense, many-flowered; pedicels up to 40 mm, almost equal. Perianth stellate; segments 3-4.5 x 2-2.5 mm, white, with green stripe, slightly unequal, the outer ovate, the inner oblong, obtuse or acute. Stamens exserted; filaments 4-5 mm, the outer subulate, the inner with an expanded base up to 2 mm wide and shortly toothed on each side. Ovary whitish. Capsule c. 5 mm.
Chromosome number: 2n=16
Distributional range: All Europe
Native region outside Europe: Eurasia

Distributional map in Europe
and the Mediterranean region (2018):
Occurrences in Europe.
(from Flora Europaea pre year 1993):
All Europe
Occurrences in Europe and the Mediterranean region.
(from Euro+Med Checklist, 2019)
  Country codes  
[Bt By Eg Ga Hs It Ju Rf(C E N NW S) Uk(K U)]

Links & Further literature (0 papers)

Google Web

Google Images

Google Scholar

Research Gate

Wikipedia

JSTOR

GBIF

Med Checklist

Cat. of Life

EoL

IPNI

World Flora Online

Plants of the World Online

Vienna Virt. Herb.

RBGE Herbarium

KEW Herbarium

MNHN

Arkive

IUCN

CABI
Kindly Email if there are papers and publications about local studies or information about this species to be included in the list above.

Species Images (6 images)
   Allium cepa   -   Image Code: ALLCP-0.
   Allium cepa   -   Image Code: ALLCP-1.
   Allium cepa   -   Image Code: ALLCP-2.
   Allium cepa   -   Image Code: ALLCP-3.
   Allium cepa   -   Image Code: ALLCP-4.
   Allium cepa   -   Image Code: ALLCP-5.

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